Add support for the bswap instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5114 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/Printer.cpp b/lib/Target/X86/Printer.cpp
index 84b43a0..385172d 100644
--- a/lib/Target/X86/Printer.cpp
+++ b/lib/Target/X86/Printer.cpp
@@ -196,20 +196,22 @@
// or it takes a register and an immediate of the same size as the register
// (move immediate f.e.). Note that this immediate value might be stored as
// an LLVM value, to represent, for example, loading the address of a global
- // into a register.
+ // into a register. The initial register might be duplicated if this is a
+ // M_2_ADDR_REG instruction
//
assert(MI->getOperand(0).isRegister() &&
(MI->getNumOperands() == 1 ||
(MI->getNumOperands() == 2 &&
(MI->getOperand(1).getVRegValueOrNull() ||
- MI->getOperand(1).isImmediate()))) &&
+ MI->getOperand(1).isImmediate() ||
+ MI->getOperand(1).isRegister()))) &&
"Illegal form for AddRegFrm instruction!");
unsigned Reg = MI->getOperand(0).getReg();
O << getName(MI->getOpCode()) << " ";
printOp(O, MI->getOperand(0), RI);
- if (MI->getNumOperands() == 2) {
+ if (MI->getNumOperands() == 2 && !MI->getOperand(1).isRegister()) {
O << ", ";
printOp(O, MI->getOperand(1), RI);
}